20 Dra

HIP 82898; 20 Dra DoubleStar Dra Visible Level 4 Large telescope (10"+) - Requires steady seeing

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Physical Properties

Magnitude 6.41

Spectral Type F1-3V

Star Color Yellow-white (B-V 0.38)

Distance 112.5 ly

Position & Identifiers

RA 16h 56m 25.2s

Dec +65° 02' 21.0"

Constellation Dra

HR 6319

HIP 82898

Flamsteed 20 Dra

Double Cat 10279

Visibility

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Multiple Star System

Separation 1.0″

Companion Mag 7.3

Position Angle 66°

Star Colors A: Yellow-white B: Yellow

Discoverer STF2118

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 1.0″ · PA: 66° · N up, E left

Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″

Size Comparison

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Stellar Lifecycle

Spectral Classification

Hertzsprung-Russell Diagram

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Blackbody Spectrum

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

Stellar Notes

Double Star

7.1 F1V, 7.3, sep. 1.02", 577.85y, a = 1.183".

Dynamical

0.009".

Survey Image

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